Pseudomonas mosselii: a potential alternative for managing pyrethroid-resistant Aedes aegypti.
Pest Manag Sci
; 80(9): 4344-4351, 2024 Sep.
Article
en En
| MEDLINE
| ID: mdl-38634536
ABSTRACT
BACKGROUND:
Aedes aegypti is a widespread mosquito in tropical and subtropical regions that causes significant mortality and morbidity in humans by transmitting diseases, such as dengue fever and Zika virus disease. Synthetic insecticides, such as pyrethroids, have been used to control Ae. aegypti, but these insecticides can also affect nontarget organisms and contaminate soil and water. This study aimed to investigate the mosquitocidal activity of Pseudomonas mosselii isolated from pond sludge against larvae of Ae. aegypti.RESULTS:
Based on the initial results, similar time-course profiles were obtained for the mosquitocidal activity of the bacterial culture and its supernatant, and the pellet resuspended in Luria-Bertani (LB) medium also showed delayed toxicity. These results imply that the toxic component can be released into the medium from live bacteria. Further research indicated that the toxic component appeared in the supernatant approximately 4 h after a 3-mL stock was cultured in 200 mL of LB medium. The stabilities of the P. mosselii culture and supernatant stored at different temperatures were also evaluated, and the best culture stability was obtained at 28 °C and supernatant stability at 4 °C. The bacterial culture and supernatant were toxic to larvae and pupae of not only susceptible Ae. aegypti but also pyrethroid-resistant strains.CONCLUSION:
This study highlights the value of the mosquitocidal activity of P. mosselii, which has potential as an alternative insecticide to control pyrethroid-resistant Ae. aegypti in the field. © 2024 Society of Chemical Industry.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Pseudomonas
/
Piretrinas
/
Resistencia a los Insecticidas
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Aedes
/
Insecticidas
/
Larva
Límite:
Animals
Idioma:
En
Revista:
Pest Manag Sci
Asunto de la revista:
TOXICOLOGIA
Año:
2024
Tipo del documento:
Article
País de afiliación:
Taiwán